File content as of revision 5:48eb9245a914:

/** mDot_TTN_DS18B20 - Simple mDot temperature sensor using Dallas Semiconductors DS18B20 OneWire temperature sensor.
 * It used the OTA_AUTO join mode using saved parameters. If the config is to be reset then pin A2 on the
 * dev board must be held low during a reset or power up.
 *
 * Uses MultiTech mDot developer board http://www.multitech.com/models/94558010LF
 * Requires a MultiTech MultiConnect Conduit http://www.multitech.com/models/94557203LF
 * http://www.multitech.net/developer/software/lora/conduit-mlinux-convert-to-basic-packet-forwarder/
 * http://forum.thethingsnetwork.org/t/setting-up-multitech-conduit-gateway-for-ttn/216/35
 *
 */

#include "mbed.h"
#include "DS1820.h"
#include "mDot.h"
#include "MTSLog.h"
#include "MTSText.h"
#include <string>
#include <vector>

using namespace mts;

#define MIN(a,b) (((a)<(b))?(a):(b))
#define MAX(a,b) (((a)>(b))?(a):(b))

// these options must match the settings on your Conduit in
// /var/config/lora/lora-network-server.conf
//static std::string config_network_name = "ThingInnovations";
//static std::string config_network_pass = "donkey123";
//
//const uint8_t AppKey[16]={0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C};
// Application session key
uint8_t AppSKey[16]= {0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C};
// Network session key
uint8_t NwkSKey[16]= {0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C};
// Dev addr
uint8_t NodeAddr[4]= {0x23,0x05,0x19,0x67};

// Ignoring sub band for EU modules.
//static uint8_t config_frequency_sub_band = 1;

// mDot/dev board activity LED
//#define ACTIVITY_LED PA_0

// DS18B20 OneWire pin
// D13 on Dev Board, pin 18 on mDot
#define DATA_PIN     PA_5
// A0 on Dev Board, pin 20 on mDot
//#define DATA_PIN     PB_1

// A2 - input to reset LoRaWAN config. Pin 15 om mDot.
#define CONFIG_RESET PC_1

// Config Reset intput
DigitalIn configReset(CONFIG_RESET);

// Temperature sensor object
DS1820 probe(DATA_PIN);

// Serial via USB for debugging only
Serial pc(USBTX,USBRX);


int main()
{
    int32_t ret;
    mDot* dot;
    std::vector<uint8_t> send_data;
    std::vector<uint8_t> recv_data;
    std::vector<uint8_t> nwkSKey;
    std::vector<uint8_t> nodeAddr;

    float temperature = 0.0;

    // Enable internal pullup on input pin
    configReset.mode(PullUp);

    pc.baud(115200);
    pc.printf("TTN mDot LoRa Temperature sensor\n\r");

    // get a mDot handle
    dot = mDot::getInstance();

//    dot->setLogLevel(MTSLog::WARNING_LEVEL);
    dot->setLogLevel(MTSLog::TRACE_LEVEL);

    logInfo("Checking Config");

    // Test if we've already saved the config
    std::string configNetworkName = dot->getNetworkName();
//   config_network_name = std::string(NwkSKey,16);
//   config_network_pass = std::string(NwkSKey,16);

//    pc.printf("Name: %s\r\n",config_network_name.c_str());
    uint8_t *it = NwkSKey;
    for (uint8_t i = 0; i<16; i++)
        nwkSKey.push_back((uint8_t) *it++);

    it = NodeAddr;
    for (uint8_t i = 0; i<4; i++)
        nodeAddr.push_back((uint8_t) *it++);

    // Reset config if network name is different or pin is low then reset config.
//    if( config_network_name.compare(configNetworkName) != 0 || !configReset ) {
    if( !configReset ) {
        // Config Reset link present
        logInfo("Resetting Config");
        // reset to default config so we know what state we're in
        dot->resetConfig();
    }

    // Set byte order - AEP less than 1.0.30
//    dot->setJoinByteOrder(mDot::MSB);
    dot->setJoinByteOrder(mDot::LSB);

    logInfo("Set Public mode");
    if((ret = dot->setPublicNetwork(true)) != mDot::MDOT_OK) {
        logError("failed to set Public Mode %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }

    logInfo("Set MANUAL Join mode");
//        if ((ret = dot->setJoinMode(mDot::AUTO_OTA)) != mDot::MDOT_OK) {
    if((ret = dot->setJoinMode(mDot::MANUAL)) != mDot::MDOT_OK) {
        logError("Failed to set MANUAL Join Mode %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }

    // If on developer board then you can enable activity LED
    // Currently no spare pins that LEDs are connected too.
//    dot->setActivityLedPin( ACTIVITY_LED );
//    dot->setActivityLedEnable(false);

    // Have a decent nubmer of retries in connecting to LoRaWAN
    logInfo("Set Join retries");
    if((ret = dot->setJoinRetries( 3 )) != mDot::MDOT_OK) {
        logError("Failed to set Join retries %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }

    // Set Spreading Factor, higher is lower data rate, smaller packets but longer range
    // Lower is higher data rate, larger packets and shorter range.
    logInfo("Set SF");
//    if((ret = dot->setTxDataRate( mDot::SF_9 )) != mDot::MDOT_OK) {
    if((ret = dot->setTxDataRate( mDot::SF_12 )) != mDot::MDOT_OK) {
        logError("Failed to set SF %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }

    logInfo("Set TxPower");
    if((ret = dot->setTxPower( 14 )) != mDot::MDOT_OK) {
        logError("Failed to set Tx Power %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }

    logInfo("Set Ack");
    // 1 retries on Ack, 0 to disable
    if((ret = dot->setAck( 1 )) != mDot::MDOT_OK) {
        logError("Failed to set Ack %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }

//    Not applicable for 868MHz in EU
//    if ((ret = dot->setFrequencySubBand(config_frequency_sub_band)) != mDot::MDOT_OK) {
//        initStatus = false;
//        logError(dot, "failed to set frequency sub band", ret);
//    }

    logInfo("Set Network Key");
    if ((ret = dot->setNetworkKey(nwkSKey)) != mDot::MDOT_OK) {
        logError("Failed to set Network  Key %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }

    logInfo("Set Network Session Key");
    if ((ret = dot->setNetworkSessionKey(nwkSKey)) != mDot::MDOT_OK) {
        logError("Failed to set Network Session Key %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }

    logInfo("Set Data Session Key");
    if ((ret = dot->setDataSessionKey(nwkSKey)) != mDot::MDOT_OK) {
        logError("Failed to set Data Session Key %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }

//        if ((ret = dot->setNetworkName(config_network_name)) != mDot::MDOT_OK) {
//            logError("failed to set network name %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
//        }

//        if ((ret = dot->setNetworkPassphrase(config_network_pass)) != mDot::MDOT_OK) {
//            logError("failed to set network password %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
//        }

    logInfo("Saving Config");
    // Save config
    if (! dot->saveConfig()) {
        logError("failed to save configuration");
    }
//   } else {
//       logInfo("Using existing Config");
//   }

    // Display what is set
    std::vector<uint8_t> tmp = dot->getNetworkSessionKey();
    pc.printf("Network Session Key: ");
    pc.printf("%s\r\n", mts::Text::bin2hexString(tmp, " ").c_str());

    tmp = dot->getDataSessionKey();
    pc.printf("Data Session Key: ");
    pc.printf("%s\r\n", mts::Text::bin2hexString(tmp, " ").c_str());

    logInfo("Joining Network");

    while ((ret = dot->joinNetwork()) != mDot::MDOT_OK) {
        logError("failed to join network [%d][%s]", ret, mDot::getReturnCodeString(ret).c_str());
        wait_ms(dot->getNextTxMs() + 1);
    }

    logInfo("Joined Network");


    pc.printf("Net ID ");
    std::vector<uint8_t> nodeAddress;
    nodeAddress = dot->getNetworkId();
    for (std::vector<uint8_t>::iterator it = nodeAddress.begin() ; it != nodeAddress.end(); ++it)
        pc.printf("%2.2x",*it );

    pc.printf("\r\n");
    pc.printf("Node ID ");
    nodeAddress = dot->getNetworkAddress();
    for (std::vector<uint8_t>::iterator it = nodeAddress.begin() ; it != nodeAddress.end(); ++it)
        pc.printf("%2.2x",*it );

    pc.printf("\r\n");

    // Display LoRa parameters
    // Display label and values in different colours, show pretty values not numeric values where applicable
    pc.printf("Public Network: %s\r\n", (char*)(dot->getPublicNetwork() ? "Yes" : "No") );
    pc.printf("Frequency: %s\r\n", (char*)mDot::FrequencyBandStr(dot->getFrequencyBand()).c_str() );
    pc.printf("Sub Band: %s\r\n", (char*)mDot::FrequencySubBandStr(dot->getFrequencySubBand()).c_str() );
    pc.printf("Join Mode: %s\r\n", (char*)mDot::JoinModeStr(dot->getJoinMode()).c_str() );
    pc.printf("Join Retries: %d\r\n", (char*)(dot->getJoinByteOrder() == 0 ? "LSB" : "MSB") );
    pc.printf("Link Check Count: %d\r\n", dot->getLinkCheckCount() );
    pc.printf("Link Check Thold: %s\r\n", dot->getLinkCheckThreshold() );
    pc.printf("Tx Data Rate: %s\r\n", (char*)mDot::DataRateStr(dot->getTxDataRate()).c_str() );
    pc.printf("Tx Power: %d\r\n", dot->getTxPower() );
    pc.printf("TxWait: %s, ", (dot->getTxWait() ? "Y" : "N" );
    pc.printf("CRC: %s, ", (dot->getCrc() ? "Y" : "N") );
    pc.printf("Ack: %s\r\n", (dot->getAck() ? "Y" : "N")  );

    probe.setResolution(9);

    char dataBuf[50];
    while( 1 ) {
        // This takes upto 750mS, way too long. Change to 9 bit resolution if not already used.

        probe.convertTemperature(true, DS1820::all_devices);         //Start temperature conversion, wait until ready
//        printf("It is %3.1fC\r\n", probe.temperature());
        // Output data as JSON e.g. {"tmp":21.3}
        temperature = probe.temperature();
        sprintf(dataBuf, "{\"tmp\":%3.1f}", temperature );
        send_data.clear();
        // probably not the most efficent way to do this
        for( int i=0; i< strlen(dataBuf); i++ )
            send_data.push_back( dataBuf[i] );

        if ((ret = dot->send(send_data)) != mDot::MDOT_OK) {
            logError("failed to send: [%d][%s]", ret, mDot::getReturnCodeString(ret).c_str());
        } else {
            logInfo("send data: %s", Text::bin2hexString(send_data).c_str());
        }

        // Should  sleep here and wakeup after a set interval.
        uint32_t sleep_time = MAX((dot->getNextTxMs() / 1000), 60);
        logInfo("going to sleep for %d seconds", sleep_time);

        // go to sleep and wake up automatically sleep_time seconds later
//        dot->sleep(sleep_time, mDot::RTC_ALARM);

        wait_ms(sleep_time * 1000);
    }

    return 0;
}